1 Samuel 27:5

Let them give me a place This was a prudent request of David, who hereby intended to preserve his people, both from the vices to which conversation with the Philistines would have exposed them, and from that envy and malice which a different religion, and his appearing like a prince with so many men under his command, might have caused. For in a private town he might more freely worship the true God, and use the rites of his own religion without offence to the Philistines, who worshipped other gods, and might, with less notice and interruption, exercise his authority over his soldiers, and also more conveniently make incursions against the enemies of Israel. Why should thy servant dwell in the royal city? Which is too great an honour for me, too burdensome to thee, and may be an occasion of offence to thy people.